Processing 3.2.3 Random Fail to Accept Keyboard Input - Bug?

Answers

• jeremydouglass

  January 2017

  I can run a sketch and all is fine but the next time I run the sketch, Processing does not recognize any keyboard input

  Just as a sanity check:

  1. care you clicking inside the sketch window to give the sketch focus when you re-run the sketch?
  2. is it always the same sketch that stops keyboard input, or is it any sketch -- for example, do the example sketches do this?
  3. when keyboard input stops working, does it stop for that sketch only when re-run, or any sketch that is run after -- and does your keyboard continue to work in other applications?
• Jim_Plaxco

  January 2017

  Hi Jeremy, In response to your questions: 1) Yep 2) Not just one sketch. It spans multiple sketches. One run is fine and the next run isn't. 3) Inside sketches is the only time I've experienced issues. The keyboard is 100% all other times. As to stopping, when I start a sketch, the sketch will either process all keyboard inputs or none at all. So I stop the sketch and rerun it. Toss a coin as to whether keyboard input is recognized.
• rranon

  March 2017

  Same problem here. I check in the draw function for a key press; after a few recognitions, it fails to recognise the key pressed and I have to re-run the sketch. The same sketch was working perfectly in Processing from one year ago (don't remember the version)
• quark

  March 2017

  Do you notice a difference for sketches using the default JAVA2D renderer And P2D/P3& which use OpenGL?
• cmcwerner

  July 2017

  I have a sketch that after a few seconds of key presses fails to recognize any further key presses. Switching to the P2D renderer seems to have made the problem go away. This simple program does the trick. I'm running 3.2.1 on a Mac with OSX. void setup() { size(100,100); }

  int bg; void draw() { background(bg); if (keyPressed) { bg = 255-bg; } }
• jeremydouglass

  July 2017

  Might be related to:

  https://github.com/processing/processing/issues/5049